The Experts below are selected from a list of 279 Experts worldwide ranked by ideXlab platform

V. P. Sharma - One of the best experts on this subject based on the ideXlab platform.

  • Development of Jatropha oil-in-water emulsion drilling Mud System
    Journal of Petroleum Science and Engineering, 2016
    Co-Authors: Bhola Kumar Paswan, Rajat Jain, Vikas Mahto, Sunil K. Sharma, V. P. Sharma
    Abstract:

    Abstract The increase in strict environmental regulations limits the use of diesel based Muds as these Muds are toxic and disposal of cuttings into the environment is a major issue faced by the drilling industries. To overcome this issue, an attempt has been made to develop oil-in-water emulsion Mud System using jatropha oil. The effect of oil, bentonite clay and carboxymethyl cellulose (CMC) polymer on the rheological parameters and fluid loss control property of the developed System was analyzed thoroughly. The jatropha oil-in-water emulsion Mud System had shown better rheological and filtration properties than the diesel oil-in-water emulsion Mud System. The Jatropha oil-in-water Mud System had lower coefficient of friction than the diesel oil based Mud System. This is an indicative of relatively higher lubricating property of this System. Low formation damage effect and high shale recovery performance were obtained with this System during the core flow study and shale recovery test. The zeta potential measurements have been carried out to analyze the emulsion stability and it was found that the addition of clay (0.5–4.0 wt/v%) and CMC (0.1–1.0 wt/v%) has enhanced the stability of the emulsions. Hence, the developed jatropha oil-in-water emulsion Mud System has a great prospect in the development of emulsion Muds desired for the drilling of oil wells.

  • evaluation of polyacrylamide grafted polyethylene glycol silica nanocomposite as potential additive in water based drilling Mud for reactive shale formation
    Journal of Natural Gas Science and Engineering, 2015
    Co-Authors: Rajat Jain, Vikas Mahto, V. P. Sharma
    Abstract:

    Abstract This research work discusses the feasibility of polyacrylamide-grafted-polyethylene glycol/SiO 2 nanocomposite as a potential additive for the drilling of troublesome shale formations which may lead to severe wellbore instability problems. The free radical polymerization technique was adopted for the synthesis of the nanocomposite and it was characterized by Fourier transform infrared spectroscopy (FTIR), Field emission scanning electron microscopy (FESEM), Energy dispersive spectroscopy (EDX), Atomic force microscopy (AFM), and thermogravimetric analysis (TGA). Then, it was utilized in the formulation of the water based drilling Mud System. Its effect on the rheological parameters and filtration control characteristics of the developed Mud System was analyzed thoroughly as per API standard procedures. In addition, its shale inhibition characteristic was investigated with hot rolling shale dispersion tests, and immersion test. Further, Core flooding tests were carried out to study the formation damage caused by developed drilling fluid System. The experimental investigations revealed that synthesized nanocomposite exhibited superior shale inhibition property. The nanocomposite acted synergistically with other additives in the developed System and furnished good rheological properties & filtration characteristics. It also exhibited low formation damage, high shale recovery, and high thermal stability than the partially hydrolyzed polyacrylamide (PHPA) polymer in the developed drilling Mud System. Hence, this nanocomposite may be used as a potential drilling fluid additive in the water based drilling fluid System for shale formations.

  • Evaluation of polyacrylamide-grafted-polyethylene glycol/silica nanocomposite as potential additive in water based drilling Mud for reactive shale formation
    Journal of Natural Gas Science and Engineering, 2015
    Co-Authors: Rajat Jain, Vikas Mahto, V. P. Sharma
    Abstract:

    Abstract This research work discusses the feasibility of polyacrylamide-grafted-polyethylene glycol/SiO 2 nanocomposite as a potential additive for the drilling of troublesome shale formations which may lead to severe wellbore instability problems. The free radical polymerization technique was adopted for the synthesis of the nanocomposite and it was characterized by Fourier transform infrared spectroscopy (FTIR), Field emission scanning electron microscopy (FESEM), Energy dispersive spectroscopy (EDX), Atomic force microscopy (AFM), and thermogravimetric analysis (TGA). Then, it was utilized in the formulation of the water based drilling Mud System. Its effect on the rheological parameters and filtration control characteristics of the developed Mud System was analyzed thoroughly as per API standard procedures. In addition, its shale inhibition characteristic was investigated with hot rolling shale dispersion tests, and immersion test. Further, Core flooding tests were carried out to study the formation damage caused by developed drilling fluid System. The experimental investigations revealed that synthesized nanocomposite exhibited superior shale inhibition property. The nanocomposite acted synergistically with other additives in the developed System and furnished good rheological properties & filtration characteristics. It also exhibited low formation damage, high shale recovery, and high thermal stability than the partially hydrolyzed polyacrylamide (PHPA) polymer in the developed drilling Mud System. Hence, this nanocomposite may be used as a potential drilling fluid additive in the water based drilling fluid System for shale formations.

Rajat Jain - One of the best experts on this subject based on the ideXlab platform.

  • Formulation of a water based drilling fluid System with synthesized graft copolymer for troublesome shale formations
    Journal of Natural Gas Science and Engineering, 2017
    Co-Authors: Rajat Jain, Vikas Mahto
    Abstract:

    Abstract Shale formations consisting of reactive clay mineral of smectite group like montmorillonite may lead to severe wellbore instability problems with conventional water based drilling fluids. This may be due to their high magnitude of rock-fluid interaction inside the wellbore. Problems like hole enlargement, pipe sticking, high toque and drag etc. may escalate drilling cost and time. The present study deals with the applicability of synthesized polyacrylamide/dially dimethyl ammonium chloride-grafted-gum acacia copolymer in formulation of novel water based drilling Mud System (WBDMS) for troublesome shale formations. The mechanism behind the synthesis was free radical polymerization. The structural information and morphological properties of copolymer were determined by Fourier transform infrared spectroscopy (FTIR) and Field emission scanning electron microscopy (FESEM). Further, its effect on filtration and rheology of developed Mud System was analyzed thoroughly as per API standard procedures. Further, effectiveness of graft copolymer on the shale stabilization was investigated using shale dispersion and slake durability tests. The reactivity of core sample with the developed drilling fluid System was analyzed using core flooding experimental setup. The experimental investigations showed that synthesized graft copolymer has significant effect on rheological parameters and filtration characteristics of the System due to its synergistic effects in the developed System. Also, its shale stabilization property was superior to the commercially used shale stabilizer (partially hydrolyzed polyacrylamide polymer). It was evident from the high values of shale recovery and slake durability index. This was achieved due to the presence of cationic ions and formation of a protective coating on shale cuttings. It has also resulted in the low magnitude of rock-fluid interaction. The developed drilling fluid System exhibited low reactivity with the core sample during core flow studies. Thus, the synthesized graft copolymer can be utilized as an additive in the formulation of water based Mud System customized for reactive shale formations.

  • Development of Jatropha oil-in-water emulsion drilling Mud System
    Journal of Petroleum Science and Engineering, 2016
    Co-Authors: Bhola Kumar Paswan, Rajat Jain, Vikas Mahto, Sunil K. Sharma, V. P. Sharma
    Abstract:

    Abstract The increase in strict environmental regulations limits the use of diesel based Muds as these Muds are toxic and disposal of cuttings into the environment is a major issue faced by the drilling industries. To overcome this issue, an attempt has been made to develop oil-in-water emulsion Mud System using jatropha oil. The effect of oil, bentonite clay and carboxymethyl cellulose (CMC) polymer on the rheological parameters and fluid loss control property of the developed System was analyzed thoroughly. The jatropha oil-in-water emulsion Mud System had shown better rheological and filtration properties than the diesel oil-in-water emulsion Mud System. The Jatropha oil-in-water Mud System had lower coefficient of friction than the diesel oil based Mud System. This is an indicative of relatively higher lubricating property of this System. Low formation damage effect and high shale recovery performance were obtained with this System during the core flow study and shale recovery test. The zeta potential measurements have been carried out to analyze the emulsion stability and it was found that the addition of clay (0.5–4.0 wt/v%) and CMC (0.1–1.0 wt/v%) has enhanced the stability of the emulsions. Hence, the developed jatropha oil-in-water emulsion Mud System has a great prospect in the development of emulsion Muds desired for the drilling of oil wells.

  • evaluation of polyacrylamide grafted polyethylene glycol silica nanocomposite as potential additive in water based drilling Mud for reactive shale formation
    Journal of Natural Gas Science and Engineering, 2015
    Co-Authors: Rajat Jain, Vikas Mahto, V. P. Sharma
    Abstract:

    Abstract This research work discusses the feasibility of polyacrylamide-grafted-polyethylene glycol/SiO 2 nanocomposite as a potential additive for the drilling of troublesome shale formations which may lead to severe wellbore instability problems. The free radical polymerization technique was adopted for the synthesis of the nanocomposite and it was characterized by Fourier transform infrared spectroscopy (FTIR), Field emission scanning electron microscopy (FESEM), Energy dispersive spectroscopy (EDX), Atomic force microscopy (AFM), and thermogravimetric analysis (TGA). Then, it was utilized in the formulation of the water based drilling Mud System. Its effect on the rheological parameters and filtration control characteristics of the developed Mud System was analyzed thoroughly as per API standard procedures. In addition, its shale inhibition characteristic was investigated with hot rolling shale dispersion tests, and immersion test. Further, Core flooding tests were carried out to study the formation damage caused by developed drilling fluid System. The experimental investigations revealed that synthesized nanocomposite exhibited superior shale inhibition property. The nanocomposite acted synergistically with other additives in the developed System and furnished good rheological properties & filtration characteristics. It also exhibited low formation damage, high shale recovery, and high thermal stability than the partially hydrolyzed polyacrylamide (PHPA) polymer in the developed drilling Mud System. Hence, this nanocomposite may be used as a potential drilling fluid additive in the water based drilling fluid System for shale formations.

  • Evaluation of polyacrylamide-grafted-polyethylene glycol/silica nanocomposite as potential additive in water based drilling Mud for reactive shale formation
    Journal of Natural Gas Science and Engineering, 2015
    Co-Authors: Rajat Jain, Vikas Mahto, V. P. Sharma
    Abstract:

    Abstract This research work discusses the feasibility of polyacrylamide-grafted-polyethylene glycol/SiO 2 nanocomposite as a potential additive for the drilling of troublesome shale formations which may lead to severe wellbore instability problems. The free radical polymerization technique was adopted for the synthesis of the nanocomposite and it was characterized by Fourier transform infrared spectroscopy (FTIR), Field emission scanning electron microscopy (FESEM), Energy dispersive spectroscopy (EDX), Atomic force microscopy (AFM), and thermogravimetric analysis (TGA). Then, it was utilized in the formulation of the water based drilling Mud System. Its effect on the rheological parameters and filtration control characteristics of the developed Mud System was analyzed thoroughly as per API standard procedures. In addition, its shale inhibition characteristic was investigated with hot rolling shale dispersion tests, and immersion test. Further, Core flooding tests were carried out to study the formation damage caused by developed drilling fluid System. The experimental investigations revealed that synthesized nanocomposite exhibited superior shale inhibition property. The nanocomposite acted synergistically with other additives in the developed System and furnished good rheological properties & filtration characteristics. It also exhibited low formation damage, high shale recovery, and high thermal stability than the partially hydrolyzed polyacrylamide (PHPA) polymer in the developed drilling Mud System. Hence, this nanocomposite may be used as a potential drilling fluid additive in the water based drilling fluid System for shale formations.

Vikas Mahto - One of the best experts on this subject based on the ideXlab platform.

  • Formulation of a water based drilling fluid System with synthesized graft copolymer for troublesome shale formations
    Journal of Natural Gas Science and Engineering, 2017
    Co-Authors: Rajat Jain, Vikas Mahto
    Abstract:

    Abstract Shale formations consisting of reactive clay mineral of smectite group like montmorillonite may lead to severe wellbore instability problems with conventional water based drilling fluids. This may be due to their high magnitude of rock-fluid interaction inside the wellbore. Problems like hole enlargement, pipe sticking, high toque and drag etc. may escalate drilling cost and time. The present study deals with the applicability of synthesized polyacrylamide/dially dimethyl ammonium chloride-grafted-gum acacia copolymer in formulation of novel water based drilling Mud System (WBDMS) for troublesome shale formations. The mechanism behind the synthesis was free radical polymerization. The structural information and morphological properties of copolymer were determined by Fourier transform infrared spectroscopy (FTIR) and Field emission scanning electron microscopy (FESEM). Further, its effect on filtration and rheology of developed Mud System was analyzed thoroughly as per API standard procedures. Further, effectiveness of graft copolymer on the shale stabilization was investigated using shale dispersion and slake durability tests. The reactivity of core sample with the developed drilling fluid System was analyzed using core flooding experimental setup. The experimental investigations showed that synthesized graft copolymer has significant effect on rheological parameters and filtration characteristics of the System due to its synergistic effects in the developed System. Also, its shale stabilization property was superior to the commercially used shale stabilizer (partially hydrolyzed polyacrylamide polymer). It was evident from the high values of shale recovery and slake durability index. This was achieved due to the presence of cationic ions and formation of a protective coating on shale cuttings. It has also resulted in the low magnitude of rock-fluid interaction. The developed drilling fluid System exhibited low reactivity with the core sample during core flow studies. Thus, the synthesized graft copolymer can be utilized as an additive in the formulation of water based Mud System customized for reactive shale formations.

  • Development of Jatropha oil-in-water emulsion drilling Mud System
    Journal of Petroleum Science and Engineering, 2016
    Co-Authors: Bhola Kumar Paswan, Rajat Jain, Vikas Mahto, Sunil K. Sharma, V. P. Sharma
    Abstract:

    Abstract The increase in strict environmental regulations limits the use of diesel based Muds as these Muds are toxic and disposal of cuttings into the environment is a major issue faced by the drilling industries. To overcome this issue, an attempt has been made to develop oil-in-water emulsion Mud System using jatropha oil. The effect of oil, bentonite clay and carboxymethyl cellulose (CMC) polymer on the rheological parameters and fluid loss control property of the developed System was analyzed thoroughly. The jatropha oil-in-water emulsion Mud System had shown better rheological and filtration properties than the diesel oil-in-water emulsion Mud System. The Jatropha oil-in-water Mud System had lower coefficient of friction than the diesel oil based Mud System. This is an indicative of relatively higher lubricating property of this System. Low formation damage effect and high shale recovery performance were obtained with this System during the core flow study and shale recovery test. The zeta potential measurements have been carried out to analyze the emulsion stability and it was found that the addition of clay (0.5–4.0 wt/v%) and CMC (0.1–1.0 wt/v%) has enhanced the stability of the emulsions. Hence, the developed jatropha oil-in-water emulsion Mud System has a great prospect in the development of emulsion Muds desired for the drilling of oil wells.

  • evaluation of polyacrylamide grafted polyethylene glycol silica nanocomposite as potential additive in water based drilling Mud for reactive shale formation
    Journal of Natural Gas Science and Engineering, 2015
    Co-Authors: Rajat Jain, Vikas Mahto, V. P. Sharma
    Abstract:

    Abstract This research work discusses the feasibility of polyacrylamide-grafted-polyethylene glycol/SiO 2 nanocomposite as a potential additive for the drilling of troublesome shale formations which may lead to severe wellbore instability problems. The free radical polymerization technique was adopted for the synthesis of the nanocomposite and it was characterized by Fourier transform infrared spectroscopy (FTIR), Field emission scanning electron microscopy (FESEM), Energy dispersive spectroscopy (EDX), Atomic force microscopy (AFM), and thermogravimetric analysis (TGA). Then, it was utilized in the formulation of the water based drilling Mud System. Its effect on the rheological parameters and filtration control characteristics of the developed Mud System was analyzed thoroughly as per API standard procedures. In addition, its shale inhibition characteristic was investigated with hot rolling shale dispersion tests, and immersion test. Further, Core flooding tests were carried out to study the formation damage caused by developed drilling fluid System. The experimental investigations revealed that synthesized nanocomposite exhibited superior shale inhibition property. The nanocomposite acted synergistically with other additives in the developed System and furnished good rheological properties & filtration characteristics. It also exhibited low formation damage, high shale recovery, and high thermal stability than the partially hydrolyzed polyacrylamide (PHPA) polymer in the developed drilling Mud System. Hence, this nanocomposite may be used as a potential drilling fluid additive in the water based drilling fluid System for shale formations.

  • Evaluation of polyacrylamide-grafted-polyethylene glycol/silica nanocomposite as potential additive in water based drilling Mud for reactive shale formation
    Journal of Natural Gas Science and Engineering, 2015
    Co-Authors: Rajat Jain, Vikas Mahto, V. P. Sharma
    Abstract:

    Abstract This research work discusses the feasibility of polyacrylamide-grafted-polyethylene glycol/SiO 2 nanocomposite as a potential additive for the drilling of troublesome shale formations which may lead to severe wellbore instability problems. The free radical polymerization technique was adopted for the synthesis of the nanocomposite and it was characterized by Fourier transform infrared spectroscopy (FTIR), Field emission scanning electron microscopy (FESEM), Energy dispersive spectroscopy (EDX), Atomic force microscopy (AFM), and thermogravimetric analysis (TGA). Then, it was utilized in the formulation of the water based drilling Mud System. Its effect on the rheological parameters and filtration control characteristics of the developed Mud System was analyzed thoroughly as per API standard procedures. In addition, its shale inhibition characteristic was investigated with hot rolling shale dispersion tests, and immersion test. Further, Core flooding tests were carried out to study the formation damage caused by developed drilling fluid System. The experimental investigations revealed that synthesized nanocomposite exhibited superior shale inhibition property. The nanocomposite acted synergistically with other additives in the developed System and furnished good rheological properties & filtration characteristics. It also exhibited low formation damage, high shale recovery, and high thermal stability than the partially hydrolyzed polyacrylamide (PHPA) polymer in the developed drilling Mud System. Hence, this nanocomposite may be used as a potential drilling fluid additive in the water based drilling fluid System for shale formations.

Issham Ismail - One of the best experts on this subject based on the ideXlab platform.

  • The performance of sago starch and modified starch (FL-7 plus)in the KCl-starch Mud System
    2001
    Co-Authors: Issham Ismail, Cheun Seong Chuah
    Abstract:

    The readily available of local starch together with the many possibilities as to chemical modification constitute the basis for the great versatility of starch derivatives. An experiment was conducted on sago starch and modified starch (hydroxypropyl starch), used as fluid loss control additive in the KCI Mud Systems, which comprised of the study of the stability of the blended Mud System with contaminants in the wellbore, such as formation water during drilling operation and also the thermal stability of the Mud System. Consequently, the desired functions of the Mud were stunted. Contamination tests were performed at temperature and pressure of 2500F and 500 psi respectively, to evaluate the ability of the Mud to be safely used under the field condition. Nevertheless, the experimental results revealed that the modified starch gave better performance despite the presence of contaminants and high temperature compared to sago starch, which was sensitive to the Ca++ contamination and high temperature, in terms of filtration and rheological properties.

  • The feasibility study of using local hematite as weighting material in an oil-based Mud System
    1994
    Co-Authors: Issham Ismail, Ahmad Kamal Idris
    Abstract:

    This paper dicusses the prospect of utilising local hematite as weighting material in an oil-based Mud System. The discussion was based on laboratory experiments, which were performed at the Faculty of Chemical & Natural Resources Engineering of Universiti Teknologi Malaysia. In this study, the performance of local hematite was evaluated by comparing it to barite, a conventional weighting material used in the oil industry. All the tests were performed according to the API standard procedures. The preliminary results from this study reveal that the local hematite has the potential to be used as weighting material in oil-based drilling fluid.

  • The use of Malaysian ilmenite as weighting material in drilling Mud
    1994
    Co-Authors: Ahmad Kamal Idris, Issham Ismail, Ariff Othman
    Abstract:

    This paper discusses the prospect of utilising Malaysia ilmenite as weighting material in drilling Mud. The discussion was based on laboratory experiments. The performance of local ilmenite was compared to barite in a lignosulphonate Mud System. The results showed that for a given Mud density, ilmenite gave a lower solid content. Compared with barite, ilmenite gave a much higher yield point and gel strength, but there were little differences in apparent viscosity and plastic viscosity. Ilmenite was also found to give a higher API fluid loss than barite. In contrast, the fluid loss produced by ilmenite sample via the HPHT filter press was found to be much lower compared to the barite sample. The higher yield point and gel strength of the Mud which utilised local ilmenite as weighting material could be lowered by increasing the concentration of lignosulphonate in the Mud. There was no indication of incompatibility of lignosulphonate in the Mud System. Based on this preliminary study, it was concluded that the local ilmenite has the potential to be used as weighting material in drilling Mud.

Ahmad Kamal Idris - One of the best experts on this subject based on the ideXlab platform.

  • The feasibility study of using local hematite as weighting material in an oil-based Mud System
    1994
    Co-Authors: Issham Ismail, Ahmad Kamal Idris
    Abstract:

    This paper dicusses the prospect of utilising local hematite as weighting material in an oil-based Mud System. The discussion was based on laboratory experiments, which were performed at the Faculty of Chemical & Natural Resources Engineering of Universiti Teknologi Malaysia. In this study, the performance of local hematite was evaluated by comparing it to barite, a conventional weighting material used in the oil industry. All the tests were performed according to the API standard procedures. The preliminary results from this study reveal that the local hematite has the potential to be used as weighting material in oil-based drilling fluid.

  • The use of Malaysian ilmenite as weighting material in drilling Mud
    1994
    Co-Authors: Ahmad Kamal Idris, Issham Ismail, Ariff Othman
    Abstract:

    This paper discusses the prospect of utilising Malaysia ilmenite as weighting material in drilling Mud. The discussion was based on laboratory experiments. The performance of local ilmenite was compared to barite in a lignosulphonate Mud System. The results showed that for a given Mud density, ilmenite gave a lower solid content. Compared with barite, ilmenite gave a much higher yield point and gel strength, but there were little differences in apparent viscosity and plastic viscosity. Ilmenite was also found to give a higher API fluid loss than barite. In contrast, the fluid loss produced by ilmenite sample via the HPHT filter press was found to be much lower compared to the barite sample. The higher yield point and gel strength of the Mud which utilised local ilmenite as weighting material could be lowered by increasing the concentration of lignosulphonate in the Mud. There was no indication of incompatibility of lignosulphonate in the Mud System. Based on this preliminary study, it was concluded that the local ilmenite has the potential to be used as weighting material in drilling Mud.